The distinction we were discussing here, between synchronization (an adjustment that causes something to occur or recur in unison) and synchronicity (the coincidence of events that seem related but are not obviously caused one by the other), is ordinarily very subtle. Taken in context, however, the aphorism that correlation is necessary but not sufficient for causality is rather strongly underscored. Ahem.
Felix qui potuit rerum cognoscere causas.
(Lucky is he who has been able to understand the causes of things.)
- Virgil, Georgics ii.490
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Banazîr